Base



FIG. 1 is a top perspective view of a base;

FIG. 2 is a side view of the base;

FIG. 3 is a top view of the base;

FIG. 4 is a bottom view of the base;

FIG. 5 is a cross-sectional view of the base; and,

FIG. 6 is a bottom perspective view of the base.

The broken lines shown in the drawings of a base are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a base, as shown and described. 